I wasn’t able to do any real benchmarking, but in my testing I felt that there was a noticeable performance improvement as well. At least, when I flip back to v0.5.8, my test pages feel more sluggish. I reload those pages so many times that I’m somewhat blind to the overall improvements.
The refactoring which I did for this release ought to result in performance improvements because I’ve optimized the code based on the best practices contained in JSLint.com as well as quite a few other things which reduce the number of Web Services calls while maintaining the same functionality.
I’d love to hear what you see with v0.6.0 in your environment. Please leave comments here and let me know!